Link-joint-connecting rod



.11unei12,1923. 11,458,345

J. KONAR LINK JOINT CONNECTING ROD Filed April 11. 1921 INVEN TOR.

Patented .lune i2, lQZfi.

JOHN KONAR, OF CHICAGO, ILLINOIS.

LINK-JOINT-CONNECTING ROD.

Application filed April 11, 1921. Serial No. 460,562.

To all whom it may concern.

Be it known that 1, JOHN House, a citizen of the United States ofAmerica, and a resident of Chicago, in the county of Cook, State ofIllinois, have invented certain new and useful Improvements inLink-Joint-Connecting Rods, of which the following is a specification,

My invention relates to improvements in crank operated connecting rodsand the object of my invention is to afford a linkjoint between theconnecting rod and the crankpin for adapting the rod and a therewithconnected workhead to leap by their projectile and centrifugal forcesbeyond the usual dead center and to return by similar forces, or withthe aid of a peculiar cam attachment.

My linkjointed rod is simple, durable and efiicient to improve anordinary four cycle gas engine by allowing the piston to drive itsscavenging stroke into the very compression space for a better disposalof the overhot dead gases.

Fig. 1 is a side view in elevation of my linkjointed connecting rod andillustrates the rod in its'fully stretched and projected dead centerstate, as for instance at the end of the exhaust stroke with a gasengine.

Fig. 2 is a side view in elevation of my linkjointed connecting rod, andillustrates the rod with a cam attachment and progressing to finish theintake stroke by clasping into the collapsed position of Fig. 3. whichillustrates a ready condition for a new stroke, as for instance forcompression after intake with a gas engine.

Fig. 4 is a side view in elevation of my linkjointcd connecting rod andillustrates the rod partly extended in a transient projecting conditionto reach the position of Fig; 1.

Fig. 5 is a side-view of Fig. 3, as seen from the direction of thebroken line 1.

Fig, 6 isa side-view in elevation of a modi fication of my linkjointedconnecting rod and illustrates the rod in a lower dead center position.as indicated by the axis line 1.

The broken line 1 represents the longitudinal axis of a cylinder with avertical four cycle gas engine.

The crank shaft 2, usually suitably mounted, has a web 3 and thereon acrank pin 4 with an orbit indicated by the arrow circle 5.

On the crankpin is journaled a box 6, from which projects a linkend withtwo orifices 7 and 7".

The connecting rod 8 may be attached in a usual way, in this case by awristpin 9, to a suitable work head,. as for instance to a piston of agas engine with this my selected exemplification. The crankend of theconnecting rod has a loop 10 to slip between the orifices 7 and 7 forengaging the linkpin 11, that is inserted in said orifices; thereby therod is hinged to a linkpin, that combines the loop 10 with said orificesinto a linkjoint to swing with said linkend on the crankpin andtherewith affords to said crankend a radius of oscillation at a distanceof said crankpin and thus enables the rod to leap beyond the usualheadward dead center terminal.

From the crankend of the rod projects towards the box 6 a heel 12, whichin Fig. 3 is shown set on the box to give the connecting rod a bettersupport on the crank pin during the compression, during the power strokeand during the first half of the exhaust stroke.

When the crankpin, ascending for the ex haust stroke (s in Fig. 3,passes about 120 degrees upward travel, the high speeded piston and theconnecting rod start a leap by their faster projectile force and fiyaway from the crankpin towards the upper dead center; they distance theheel 12 from the box 6. and simultaneously upturn the linkjoint into thesubsequent positions of Fig. 4 and Fig. 1. The upturning ofthe'linkjoint is accelerated by its own centrifugal force and by that ofthe crankend of the rod. In the transient course from Fig. 4 to Fig. 1the crankpin wedges the link against the linkpin, pries thereby thelinkpin further out of the orbit 5 and insures the elevation of theconnecting rod and the piston into the extreme exhaust dead centerposition of Fig. 1. Near the end of the exhaust stroke the fast airpushbehind it also helps the piston to project. By the said combined forcesthe connecting rod stretches its linkjoint to the full extension. asshown in Fig.

1, and aids the piston to forerun the radius of the crankpin and to pushinto the very compression chamber for expelling from there the overhotfoul gases effectively even against the resistance of a muifler. that isused with automobiles.

From the position of Fig. 1 the crankpin pulls the connecting rod with astretched out linkjoint and with ever increasing speed towards theposition of Fig. 2 during about ii -Fig. 8; thereby the friction fromthe cran'kpin on the box 6 also helps to turn the 100 degrees of theintake :stroke,when the piston at its highest speed jumps in a straightcourse tpwvards the lower dead center, whereto the crankpin is racing ina curve. There then the gravitation and the projectile force of thepiston and the tangentially inclined connecting rod combine with thecentrifugal force of the lower rodend for driving the also centritugallydisposed link'joint in the direction of the arrow 13 and towards theorbit 5, so as to clasp the linkjoint into a collapse, as shownlinkjoint in the direction ofthe arrow 13. Ordinarilythe mentionedinertia forces are 'su'flicient to collapse the connecting rod into thefinished intake position of 3.

, Friction, too much vacnu'm'in the cylinder or an overturned positiono'fthe'engine may retard the clasp'ing of the linkjoint; then morepositive clasping means are. afforded by the cam 14 and the roller 15.The cam 14 is with one side attached to the crankend so as'to have aside-clearance towards the Web. The cam 14: is curved upward from thevicinity'of the end of the heel '12towards theaxis'o'f the rod. Inparallel alignment with the crankshaft'is a stud projected from "the webtocarry the roller 15, that is suitably locatedto meet thecam 14. Afterthe connecting rod reaches the position of Fig.

'2, the roller 15 runs aloiigjthe cam 14 and pushes it'to'gether withthe linlrjoint into the finished intake position of Fig; .l which istheinflexible relation of parts with my link- 'joint rod during thecompression stroke and during 'firing.

The roller and cam-action insures a speedy return of the piston and ahigh end velocity of the intake, whereby the new all fuel i expulsion ofthe overhot foul gases from the,

charge is "pneumatically rammed into den sity within a well ventilatedspace, which is a big gain, especially with engines working in ararefied atmosphere, as in aviation. By

compression chamber the volumetric capacity' of theintake is soinuch'increased; simultaneously the quality of the new charge isimproved by the absence of dilution and *"heat expansion through hotdead gases. The 'larg'er,'cleaner, cooler andtherefore denser new chargedevelops withthe same amount of compression a muchhigher pressure duringfiring, which again improves tot'al. in-

flammation and combustion, is moreconflagrant to carbon deposits andthereby "eliminates troubles, permits more compresforusing the lowergrades of. 'fuel. I

sion without danger to pre-ignition and increases power e'fliciency perpound of engine and per pound of fuel Wltll a widened range The highendvelocity of the intake in- 'suresa quick completion of the fillingand permits more ease in closing the intake valve. Also more timef'and ease 'is gained for the closing of the exhaust valve by thequickened scavenging, that the forerunning piston :produccs, asindicated in Figs. l and 1.

On thecrankend is opposite from the heel.

12 a duplicate heel 12 and opposite from the v .connecting rod 8 has aheel-like base, that .is shaped to 'match'the top of the box 6 to havethereon a broadercsiipport. From one side of the base extends a pedaltowards the loop 10 to engage therewith the linkpin 1.1,

that forms with the orifices 7 and 7 a linkjoint on saidlinkend, wherebythe pedal is adapted to sw'ingthe connecting rodwith the linkend uponthe crankpin, Projecting from the loop 107 is a st0p 16, which bearsagainst the linkend and bars the 'linlrjoint' from annndue tilting overthe dead center,

' when the rod 8 isin similar positions asthe rod 8 isin Figs. 1, 2 and4. "In Fig. (Sis also shown a cam 14 attached to the webs to" meet aroller 15 that is pivoted near the cran'kendo'f the rod which camand'r'oller V dlsposition 1s a reversal. and an eqinvalent transposedlocation o'f the cam 14:: and the roller 15.

Tl'ielerigtho'r" my linkj oint connecting rod "in a: collapsed state,taken from crank'pin. to

Wristp'in, is equal to'the no'rmal, length otlan ordinary connectingrod. By ,the ability .to

. collapse from its most extended length into said normal length, thelink affords *[ieXibility to saidconnecting'rod and therewith lostmotion and latitude to skip its extending and the forcing'of said pistoninto the -compressionchamber atthe end/of the .com-

pressiohstroke. v Duringth'e compression stroke with a four cyclegasjengine the linlqoint'rod 1s pressed-by the cranlragainst the pistonand 1 the resistance of the compressed charge and.

therefore is unable to extendiromthe settled position of Fig. 3 to'getagainst closed valves, as for firing,"into. the position of" Fig.1, thatshows the'rod in a state of exhaust "end extension and is only possible,when no compressionresistance hinders the inertia of the piston and'therod. W Vhile my 'l inkjoint rod able "to extend during "the exhauststroke-in combination "with tour cycle -gasfeng ine forl etting thepiston inside the compression chamber and expel the foul "gases, themain advantage of said rod resides in its ability'to returnduring'intake time to the inflexible position of Fig. 3, and

to keep that position by automatically skiphammers, chisels, knives,saws, pui'npworks and the like other workheads,whereby the lost motion,afiiordedby the linkioint, aermits the workheads to exert their momentumon the work with a range of safety to the crank, when an undue obstacleis met by the workheads, as for instance with varying work dimensions inforging. The crank movement may. be inclined, horizontal or turnedupside down for special purpose; the length of the link may vary also.-

I claim l. i With a crank movement having a suitably guided workhead, arotative crankshaft provided with a crankpin, a link having one of itsends rotatably fitted on said crankpin, said link having near its otherend a linkjoint to engage therewith the crankend oi a connecting rod aconnecting rod linked with its crankend to said linkjoint and having atits other end means to engage said workhead, whereby during speedy deadcenter transitions of the crankpin said linkjoint is free to yield andto release said connecting rod and a thereto adapted workhead for ex;-tending by combined inertia their travel beyond the radius of thecrankpin and whereby said linkjoint also 'a-ftords flexibility to saidconnecting rod and herewith lost motion and latitude to said crankshaftwhen an undue obstacle is met by said workhead \Vith a. crank movementhaving a suitably guided workhead,1a rotative crankshaft provided with acrankpin a. link having at one of its ends a journalbox and bearingtherewith rotatably on said crankpiin said link having near its otherend a linkjoint to engage. therewith the crankend of a connecting rod, aconnecting rod linked with its,

crankend to said linkj'oint and having at its other end means to engageworkhead whereby during speedy dead center transitions of the crankpinsaid linkjoint is free to yield and to release said connecting rod andthereto adapted workhead for extend by combined inertia their travelbeyond the radius 01": the crankpin and whereby said linkioint alsoadords flexibility to said connecting rod and therewith lostmotion andlatitude to said crank-shaft when an undue obstacle is met by saidworkhead, a heellike side projection extending from said crank endadapted to engage said journalbox as a support to said connecting rod.

With a crank movement having a suitably guided workhead, a rotativecrankshaft having a web provided with a crankpin, a

link having at one of its'ends a ]ournalbox and bearing therewithrot-atably on said crankpin, said link having near its other endlinkjoint to engage therewith the crank-v end of a connecting rod, aconnecting rod linked with its crankend to said linkjoint and having atits other end means to engage said workhead, whereby during speedy deadcenter transitions of the crankpin said linkjo-int 18 free to yield andto release said connecting rod and a thereto adapted workhead forextending by combined inertia their travel beyond the radius of thecrankpin and v whereby said linkjoint also affords flexibility to saidconnecting rod and therewith lost motion and latitude to said crankshaftwhen undue obstacle is met by said workhead, from said crankendprotuberant towards said web a cam, located between the ends of the weband projecting from the web towards the path of said cam a stud bearinga roller and aligned to meet and to positively actuate said cam andtherewith said linkjoint connecting rod into return-to their rearterminal. i

4;. lVith a crank-movement having a suitably guided workhead, a rotativecrankshaft having a webprovided with a crankpin a link having at one ofits ends a journal box and bearing therewith rotatably onsaid.

crankpin, said link having near its other end a linkjoint to engagetherewith the 'crankend of a connecting rod, a connecting rod linkedwith its crankend to said linkjoint and hava ing at its other end meansto engage said workhead, whereby during speedy dead cen ter transitions01" the crankpin said linkjoint is free to yield and to release saidconnecting rod and a thereto-adapted workhead for ex tending; bycombined inertia theirtravel beyond the radius oi 'the crankpin andwhereby said linkjoint also affords llexil'iility to said connecting rodand therewith lost motionand latitude to said crankshaft when an undueobstacle is met by said workhead, from said crankend protuberant towardssaid web a cam, located between the ends of the web and projecting fromthe web to wards the path of said cam a stud bearing a roller andaligned to meet and to positively actuate said cam and therewith saidlinkjoint connecting rod into a return to their rear terminal, fromsaid'crankend a heellike sideprojection adapted to engage saidjournalbox as a support to said connecting rod.- i

5. lVith crank movement having a suit ably guided workhead, avrotativ'ecrankshaft provided with a crankpin, alink having at a connecting rodhaving with its crankend,

ah'eellike base shaped to bear upon the top" *ofs'aid journalbox,extending sideways from thereto adapted workhead for extending by.'combined inertia their-travel beyond. the ra-' dius' of the crankpinand" whereby saidllnk- ,V

joint also affords flexibility to sai'd connect ing rodand thereby lostmotlon' and latitude tosaid crankshaft when anundue obstacle is met bysaid workhead.

6; In 'co'mloination*with a fourcycle g engine having a movable pistonya rotative crankshaft having a web and thereon a 'crankpin, a linkhaving at one of its ends '20 a'jou rnalbox and bearing therewithrotatably on said crankpin said link having near its other endalinkjointto engage-therewith the crankend ofa connecting rod, aconnectin'g rod linked withits crankend to said linkjoint vand'having atits'other end'means to" engage said piston, whereby "during speedy.

dead center transitionsof the crankpin said i linkjoint is free to yieldin order, first, to

v release said connecting. rod anda thereto} "adapted-piston forextending by combinedv inertia their exhaust stroke beyond the radiusofthe 'crankpinto let said piston leap i I inside thecompressionchamber' and displace the I exhaust residue, second, toenable said;

piston to return by inertia to the'end of the intake stroke and, third,to afford-flexibility V to said connecting rod and therewith lost-motion and latitude to said crankshaft to skip forcing? said vpistonvinto the compression space during'the compression stroke.

-,7-. In 'combination' with a fourcycle gas crankshaft having a web and.1 thereon a crankpima link? having at one ofits ends a journalbox and.bearing therewith 'rotatably on said crankpin, said link having near itsfother end 2t -ll11lqO1I1t to -engage therewith the'crank end of aCOIHIQ-CtHIgIOCl, a connect,

joint and having at itsr other end means to engage said pist'on,,wherebyduring speedy the exhaust residue, second, to enable said" 6 piston toreturn by inertia to the end of the intake stroke and, third, to affordflexibility to'said connecting rod and therewith 10st motion andlatitude to saidcrankshaft to skip forcing said piston into thecompression ing rod linked with its crankend to said link-' pression andthe power stroke and during part of the exhaust stroke.

8.: In combination with a four cycle gas englne having a movable plston,a rotatlve crankshaft having a web and thereon a crankpin, aflink'having at oneof its'ends a j ournalbox and bearing therewith rotatablyon-said crankpin, said link having'nearits otlierenda hnkjoint to engagetherewith the "crankend of a connecting rod, a connecting rodlinke'dwith its crankend to said link was joint-and having at its other endmeans to engage said piston. whereby during speedy adapted piston forextending 'by"combined inertia their exhaust stroke beyond theramotionand latitude to said crankshaftto skip forcing :said piston intothe compres- I s1on-space-dur1ng the compression stroke j v a y i y fromsaid crankend protuberanttowards .dead center transitions" of the'crankpin' said link-joint is free to yield in order, first,- to releasesaid connecting rod -and a thereto said web a cai n, 'locatedbet'wecn'the ends of'the Web and projecting froinllthejweb towards the path er.said a stud bearing a roller "and'aligned to meet and to positivelyactuate said cam andtherewith said linkjoint connectingirod' intoreturning I said piston to thefend of "the intake stroke. 9..VVith acrank movement having a suit- .ably "guided -WOI'kl16fad .a singularrotative engine having-a movable piston, a rotatlvef crankshaft providedwith a c'rankpin, alink having-one of its ends rotatably fitted on s uspeedy dead center transitions of the crank- Y pinsaid linkjoint is freeto yield and to release said connecting rod. and a thereto adaptedworkhead for extendingbycombined inertia their travel beyond the radius,

of the crankpin and whereby said linkjoint also affords flexibilitytosaid connecting rod ,and therewith lost motion and] latitude to saidcrankshaft when an undue obstacle is met by'saidworkheadfi JOHN KONAR.

